В.Шавров История конструкций самолетов в СССР до 1938 г.

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   Был еще учебный вариант под названием "Ньюпор-XIII-B" с двигателем "Рон" в 80 л. с. и двойным управлением, приобретенный в одном экземпляре. Подобный же двухместный разведчик "Ньюпор-XIV" с двигателем "Испано-Сюиза" в 150 и 175 л. с. был приобретен, но на фронте не был.

J.Davilla, A.Soltan French Aircraft of the First World War (Flying Machines)

Nieuport 13

  The Nieuport 13 was a small two-seat biplane with unequal span wings. As with the Nieuport 10 and 12, the Nieuport 13 had a single-bay wing with the V-shaped struts typical of Nieuport aircraft. Power was supplied by an 80hp Le Rhone engine. The aircraft had a wing area of 23 sq. m. At least one example was fitted with a 150-hp Hispano-Suiza engine and had an Eteve machine gun mount in the observer's cockpit. The Nieuport 13 was probably intended for reconnaissance, but was not selected for production.



Nieuport Reconnaissance Aircraft with 150-hp Hispano-Suiza

  The Nieuport firm built a two-seat reconnaissance aircraft with a 150-hp Hispano-Suiza engine. The aircraft had an angular cowling with multiple louvers. The tail was upswept and had a comma-shaped rudder. The aircraft was not selected for production.



Nieuport Reconnaissance Aircraft with 180-hp Lorraine-Dietrich

Another version of 1he 150-hp Hispano-Suiza two-seater was built, powered by a 180-hp Lorraine-Dietrich engine. The lower wings were modified by having sections cut away at their attachment points to the fuselage; this was probably intended to improve the crew's downward view. At least one aircraft, serial N2487, was built. The type was not selected for series production.



Nieuport Reconnaissance Aircraft with 200-hp Hispano-Suiza

  Yet another two-seat reconnaissance aircraft was produced, fitted with a 200-hp Hispano-Suiza engine. As with the Lorraine-Dietrich reconnaissance airplane, this Nieuport's lower wings had cutouts at the wing roots to improve downward view. The upper wing had curved tips and horn balanced ailerons. The aircraft had separate cockpits for both crew members, who were seated far apart. Given serial N2354, the type was not selected for production. Some sources indicate that this aircraft may have been designated the Nieuport Type 22.
  Another version of this same aircraft had a redesigned lower wing with two spars and a broader chord. It appears that only one was built.